11211204 has 24 divisors (see below), whose sum is σ = 26798688. Its totient is φ = 3645760.

The previous prime is 11211203. The next prime is 11211209. The reversal of 11211204 is 40211211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11211204.

It is not an unprimeable number, because it can be changed into a prime (11211203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10902 + ... + 11885.

It is an arithmetic number, because the mean of its divisors is an integer number (1116612).

Almost surely, 2^11211204 is an apocalyptic number.

It is an amenable number.

11211204 is an abundant number, since it is smaller than the sum of its proper divisors (15587484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11211204 is a wasteful number, since it uses less digits than its factorization.

11211204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22835 (or 22833 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 11211204 is about 3348.3136053841. The cubic root of 11211204 is about 223.8123694508.

Adding to 11211204 its reverse (40211211), we get a palindrome (51422415).

The spelling of 11211204 in words is "eleven million, two hundred eleven thousand, two hundred four".